CN-121993835-A - Heating joint control method, device and system of comprehensive energy system and storage medium

CN121993835ACN 121993835 ACN121993835 ACN 121993835ACN-121993835-A

Abstract

The application relates to the technical field of heating control, and discloses a heating combined control method, device and system of a comprehensive energy system and a storage medium, which are used for solving the problems that a heat pump is frequently started and stopped and the heat pump and a boiler are frequently cut in the traditional heating combined control method. The comprehensive energy system heating joint control method comprises the steps of obtaining current period electricity price, natural gas price and a plurality of operation condition parameters, determining cost balance points of heat of a preparation unit between a heat pump and a boiler according to the current period electricity price and the natural gas price to obtain corresponding balance point COP values of the heat pump, determining a target heat pump operation condition interval in a preset heat pump performance monitoring table according to the plurality of operation condition parameters to obtain target optimal COP values corresponding to the target heat pump operation condition interval, and carrying out heating control on a comprehensive energy system based on the current environment temperature, the target optimal COP values, the balance point COP values and the preset target heating control strategy table.

Inventors

JIANG HAO
FENG JIANYUAN
LEI PENGFEI
ZONG YI
Liang Zonghuo
LIU ZHILI

Assignees

广东芬尼克兹节能设备有限公司

Dates

Publication Date: 20260508
Application Date: 20241101

Claims (13)

1. The heating combined control method of the comprehensive energy system is characterized by being applied to the comprehensive energy system, wherein the comprehensive energy system at least comprises two heating devices, namely a heat pump and a boiler; the heating joint control method of the comprehensive energy system comprises the following steps: Acquiring the current period electricity price, the natural gas price and a plurality of operation condition parameters, wherein the operation condition parameters at least comprise the current environment temperature; determining a cost balance point of the heat of the preparation unit between the heat pump and the boiler according to the current period electricity price and the natural gas price, and obtaining a corresponding balance point COP value of the heat pump; Determining a target heat pump working condition interval in a preset heat pump performance monitoring table according to the plurality of operation working condition parameters, and obtaining a target optimal COP value corresponding to the target heat pump working condition interval; And performing heating control on the comprehensive energy system based on the current environment temperature, the target optimal COP value, the balance point COP value and a preset target heating control strategy table.
2. The integrated energy system heating combination control method according to claim 1, wherein the heating control of the integrated energy system based on the current ambient temperature, the target optimal COP value, the balance point COP value, and a preset target heating control strategy table includes: Determining a target heating control strategy according to the current environment temperature, the target optimal COP value and the balance point COP value in a preset target heating control strategy table; and controlling the comprehensive energy system to heat according to a target heating control strategy.
3. The integrated energy system heating combination control method according to claim 2, wherein the integrated energy system further comprises photovoltaic equipment, the target heating control strategy table comprises at least two heat pump shutdown working condition intervals, at least one command driving working condition interval and at least one heat pump priority working condition interval, and each heating working condition interval corresponds to one heating control strategy; the determining a target heating control strategy according to the current environment temperature, the target optimal COP value and the balance point COP value in a preset target heating control strategy table comprises: if the current ambient temperature is within any heat pump stop working condition interval range, determining a pure boiler heating control strategy as a target heating control strategy; if the current environment temperature, the target optimal COP value and the balance point COP value are in any heat pump priority working condition interval range, determining a pure heat pump heating control strategy as a target heating control strategy; And if the current environment temperature, the target optimal COP value and the balance point COP value are in any instruction driving working condition interval range, acquiring a target energy consumption mode instruction corresponding to the heat pump currently, and determining a target heating control strategy according to the target optimal COP value, the balance point COP value and the target energy consumption mode instruction.
4. The integrated energy system heating combination control method according to claim 3, wherein if the current ambient temperature, the target optimal COP value, and the balance point COP value are within any one instruction driving working condition interval range, acquiring a target energy consumption mode instruction currently corresponding to the heat pump includes: if the current environment temperature, the target optimal COP value and the balance point COP value are in any instruction driving working condition interval range, acquiring system configuration information corresponding to a comprehensive energy system, a next-period electricity price and a current corresponding electric energy transaction direction; And generating a target energy consumption mode instruction according to the current time period electricity price, the target system configuration information, the next time period electricity price, the current corresponding electric energy transaction direction and a preset heat pump operation strategy table.
5. A combined control for heating in an integrated energy system as set forth in claim 3, wherein said determining a target heating control strategy based on said target optimal COP value, said balance point COP value, and said target energy consumption pattern command includes: when the target optimal COP is larger than or equal to the balance point COP, determining a target coordinated control strategy corresponding to the target energy consumption mode instruction as a target heating control strategy; When the target optimal COP is smaller than the balance point COP, judging whether the target energy consumption mode instruction is an intelligent mode instruction or not; If yes, determining an intelligent linkage heating control strategy corresponding to the intelligent mode instruction as a target heating control strategy; if not, determining the pure boiler heating control strategy as a target heating control strategy.
6. The integrated energy system heating combination control method according to claim 1, wherein the integrated energy system does not include a photovoltaic device; the determining a target heating control strategy according to the current environment temperature, the target optimal COP value and the balance point COP value in a preset target heating control strategy table comprises: If the current ambient temperature is less than or equal to a preset heat pump safety critical temperature and/or the target optimal COP value is less than the balance point COP value, determining a pure boiler heating control strategy as a target heating control strategy; If the current ambient temperature is greater than the heat pump safety critical temperature, the current ambient temperature is less than or equal to a preset heat pump supercritical temperature, and the target optimal COP value is greater than or equal to the balance point COP value, determining a pure heat pump heating control strategy as a target heating control strategy, wherein the heat pump supercritical temperature is greater than the heat pump safety critical temperature; and if the current environment temperature is greater than a preset heat pump super-supply critical temperature and the target optimal COP value is greater than or equal to the balance point COP value, determining a target coordinated control strategy as a target heating control strategy.
7. The integrated energy system heating combination control method according to any one of claims 3-6, wherein the plurality of operation condition parameters further include a current operation temperature, the target heat pump operation interval further includes a target compressor frequency interval, and the target coordinated control strategy is an intelligent coordinated heating control strategy; The controlling the comprehensive energy system to heat according to the target heating control strategy comprises the following steps: If the target heating control strategy is an intelligent linkage heating control strategy, matching a target temperature interval in a plurality of temperature gradient intervals corresponding to the current working temperature according to the current working temperature; When the target temperature interval is a medium temperature interval or a high temperature interval, acquiring current electric energy transaction power, adjusting the heat pump operating frequency according to the electric energy transaction power, wherein the adjusted heat pump operating frequency is smaller than the interval upper limit frequency of the target compressor frequency interval; when the target temperature interval is a low temperature interval, the heat pump is controlled to heat at an interval upper limit frequency which does not exceed the frequency interval of the target compressor, and when the low temperature interval reaches a first preset duration, the boiler is allowed to be started for auxiliary heating.
8. The integrated energy system heating joint control method according to any one of claims 3 to 6, wherein the plurality of operation condition parameters further include a current operation temperature, the target heat pump operation condition interval further includes a target compressor frequency interval, and the target coordinated control strategy is a low-power consumption coordinated heating control strategy or an energy-saving coordinated heating control strategy; The controlling the comprehensive energy system to heat according to the target heating control strategy comprises the following steps: if the target heating control strategy is a low-power-consumption linkage heating control strategy or an energy-saving linkage heating control strategy, matching a target temperature interval in a plurality of temperature gradient intervals corresponding to the current working temperature according to the current working temperature; When the target temperature interval includes a load limiting condition, determining a smaller frequency of a load limiting frequency corresponding to the load limiting condition and an interval upper limit frequency of the target compressor frequency interval as a target limiting frequency, and controlling the operating frequency of the heat pump not to exceed the target limiting frequency for heating.
9. The integrated energy system heating combination control method according to claim 1, wherein the integrated energy system includes a plurality of heat pumps; Determining a target heat pump working condition interval in a preset heat pump performance monitoring table according to the plurality of operation working condition parameters to obtain a target optimal COP value corresponding to the target heat pump working condition interval, wherein the method comprises the following steps: Determining the maximum conversion rate corresponding to each heat pump under the current working condition in a heat pump performance monitoring table corresponding to each heat pump according to the plurality of operation working condition parameters; And determining a centralized control conversion rate reference value according to the maximum conversion rate corresponding to the plurality of heat pumps, and obtaining a target operation frequency interval corresponding to the centralized control conversion rate reference value.
10. The method for heating and controlling a comprehensive energy system according to claim 9, wherein determining a centralized control conversion rate reference value according to a maximum conversion rate corresponding to a plurality of heat pumps, and obtaining a target operation frequency interval corresponding to the centralized control conversion rate reference value comprises: Determining a maximum conversion rate median according to the maximum conversion rates corresponding to the heat pumps, and determining the maximum conversion rate median as a centralized control conversion rate reference value; And determining a target operation frequency interval in the heat pump performance monitoring table according to the centralized control conversion rate reference value.
11. The utility model provides a comprehensive energy system heating joint control device which characterized in that is applied to comprehensive energy system, comprehensive energy system includes two kinds of heating equipment of heat pump and boiler at least, comprehensive energy system heating joint control device includes: the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the current period electricity price, the natural gas price and a plurality of operation condition parameters, and the plurality of operation condition parameters at least comprise the current environment temperature; The first determining module is used for determining a cost balance point of the heat of the preparation unit between the heat pump and the boiler according to the current period electricity price and the natural gas price to obtain a corresponding balance point COP value of the heat pump; The second determining module is used for determining a target heat pump working condition interval in a preset heat pump performance monitoring table according to the plurality of operation working condition parameters to obtain a target optimal COP value corresponding to the target heat pump working condition interval; and the heating control module is used for performing heating control on the comprehensive energy system based on the current environment temperature, the target optimal COP value, the balance point COP value and a preset target heating control strategy table.
12. The integrated energy system is characterized by comprising a memory and at least one processor, wherein the memory stores instructions; The at least one processor invokes the instructions in the memory to cause the integrated energy system to perform the integrated energy system heating combination control method of any one of claims 1-10.
13. A computer readable storage medium having instructions stored thereon, wherein the instructions, when read and executed, perform the integrated energy system heating combination control method of any one of claims 1-10.

Description

Heating joint control method, device and system of comprehensive energy system and storage medium Technical Field The application relates to the technical field of heating control, in particular to a heating joint control method, device and system of a comprehensive energy system and a storage medium. Background The new energy technology represented by the heat pump is becoming a focus of attention, and is widely applied to the indoor heating field by virtue of the advantages of cleanliness, comfort, high efficiency, safety and energy conservation. The indoor heating requirement generally rises along with the decrease of the ambient temperature, and the heating output capacity of the heat pump often falls along with the decrease of the ambient temperature, so when the heating output capacity of the heat pump cannot meet the heating requirement at low ambient temperature, heat source equipment such as a boiler is often required to be supplemented, and along with the increase of the number and the variety of the equipment, the energy control is increasingly complex, and the comprehensive management and the scheduling of all the equipment in the area through the comprehensive energy system become particularly important for improving the energy utilization rate, reducing the electricity cost and improving the user comfort. The traditional heating combined control method generally carries out linkage control of the heat pump and the boiler according to electricity cost and heating requirements, the electricity cost of each device is closely related to the heating efficiency of the device, the higher the heating efficiency is, the lower the electricity cost is, especially the heat pump is, the heating efficiency of the heat pump is closely related to various factors such as ambient temperature, water temperature and the like, the heating efficiency of the heat pump is usually determined after the heat pump is started first, and the stable value can be reached after the heat pump is started first for a period of time each time, so that the electricity cost of the heat pump and other heating devices can be determined after the heat pump is started first for a few minutes each time of the comprehensive energy system. Disclosure of Invention The application provides a heating combined control method, a device, a system and a storage medium of a comprehensive energy system, which are used for solving the problems that the electricity cost of a heat pump and other heating equipment can be determined after the heat pump is started to operate for a few minutes each time of the comprehensive energy system, the conventional heating combined control method easily causes frequent start and stop of the heat pump, the service life of the heat pump is reduced, the heat pump and other heating equipment can be frequently switched along with the change of the heating efficiency, and the stability and the reliability of the system are reduced. The first aspect of the application provides a heating joint control method of a comprehensive energy system, which is applied to the comprehensive energy system, wherein the comprehensive energy system at least comprises two heating devices of a heat pump and a boiler, and comprises the steps of acquiring the current period electricity price, the natural gas price and a plurality of operation condition parameters, wherein the plurality of operation condition parameters at least comprise the current environment temperature; determining a cost balance point of the heat of the preparation unit between the heat pump and the boiler according to the current period electricity price and the natural gas price, and obtaining a corresponding balance point COP value of the heat pump; Determining a target heat pump working condition interval in a preset heat pump performance monitoring table according to the plurality of operation working condition parameters, and obtaining a target optimal COP value corresponding to the target heat pump working condition interval; And performing heating control on the comprehensive energy system based on the current environment temperature, the target optimal COP value, the balance point COP value and a preset target heating control strategy table. The second aspect of the present application provides a heating combined control device for an integrated energy system, which is applied to an integrated energy system, wherein the integrated energy system at least comprises two heating devices, namely a heat pump and a boiler, and the heating combined control device for the integrated energy system comprises: the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the current period electricity price, the natural gas price and a plurality of operation condition parameters, and the plurality of operation condition parameters at least comprise the current environment temperature; The first determ